Design and implementation of GCMBO control strategy for grid integrated SPV-DSTATCOM

Abstract

In the modern world, there is a large need for both the conservation of electrical power and the improvement of its use in a variety of applications. So, this work implemented the solar and photovoltaic (SPV) based distributed static synchronous compensator (SPV-DSTATCOM), which is used to improve the power quality by integrating into grid. Further, hybrid controller is developed by combining perturb and observe (P&O) withMaximum power point tracking (MPPT) controller. The P&O based MPPT controller is used to extract the maximum amount of power generated from SPV array under variety of temperature, irradiance conditions. Then, DC-DC boost converter is used to integrate the SPV with the DC-link component of DSTATCOM. Then, the greedy control-based monarch butterfly optimization (GCMBO) is developed to control the DC-DC boost connected DSTATCOM voltage and current levels. Here, the individual monarch butterflies of GCMBO have a better degree of fitness than either of their parents or their grandparents. In addition to this, a self-adaptive crossover operator (SAC) is included into the butterfly adjusting operator (BAO). During the latter phase of the search, this SAC operator has the potential to make a significant contribution to increasing the diversity of the population, which helps to reduce the total harmonic distortion (THD). The simulation results shows that the proposed control system achieved THD as 1.42 %, which is less as compared to other existing methods.

Keywords

• Photovoltaic
• Distributed static synchronous compensator
• Perturb and observe
• Maximum power point tracking
• Monarch butterfly optimization